hoistway

The safety part in hoistway and pit is finished, safety loop is connective.

井道安全部件、底坑安全部件安装到位，安全路导通。

Elastic mid-strength rock wool board: used for heat preservation, fireproofing and sound absorption for the building wall/roof, such as curtain wall, inner wall partition and elevator hoistway, etc.

有弹性，中等强度岩：用于建筑墙体/顶保温、防火、吸，墙、内墙隔断、电梯井等。